Pneumatic Ballistic Lithotripsy via Outer Sheath of Resectoscope in the Treatment of Bladder Calculi:Report of 30 Cases

Objective:To investigate a new method of pneumatic ballistic lithotripsy for the treatment of bladder calculi.Methods:A ureteroscope or nephroscope was inserted into the bladder via outer sheath of resectoscope.Then pneumatic ballistic lithotripsy was performed under endoscope to fragment with self-made closure and remove bladder stones.Results:Thirty cases were treated successfully in a single procedure without bleeding,bladder perforation and overhydration.The mean time of lithotripsy was 20 minutes.Conclusion:This method might be effectve with simple,less complication and good effect that could be used in clinic.